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Title Transcription
シマネ ハントウ カツラジマ ノ チュウジョウ セツリ ト シャメン ノ コウゾウ
Title Alternative (English)
Structures of andesite slopes controlled by columnar joints in the Katsura-jima Island area, Shimane Peninsula, Japan
File
language
jpn
Author
Iyadomi, Ryoko Geographical Survey and Photography Co.
Yokota, Shuichiro Professor Emeritus, Shimane University
Description
Structures of andesite slopes of columnar joints and their instability were discussed on the basis of direction and spacing of joint planes in the Katsura-jima Island area, Shimane Peninsula, Japan. Direction of joint planes strongly depends on flow structures of andesitic lava which forms several lava domes in the area. Based on shapes and dip angles of columnar blocks separated by joint planes, most of them are unstable and tend to topple due to seismic vibration or sea waves under the gravity. Considering that these characteristic structures of slopes depending on lava domes are widely distributed, they show continuous regression of steep slopes and the repetition of toppling of columnar blocks during in the Quaternary Period.
Subject
columnar joints
slope structure
Katsura-jima Island
Shimane Peninsula
Journal Title
島根大学地球資源環境学研究報告
Volume
33
Start Page
89
End Page
100
ISSN
13439774
Published Date
2015-02-27
NCID
AA11455176
DOI(SelfDOI)
Publisher
島根大学大学院総合理工学研究科地球資源環境学教室
NII Type
Departmental Bulletin Paper
Format
PDF
Text Version
出版社版
OAI-PMH Set
Interdisciplinary Graduate School of Science and Engineering
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